CoreOS Tectonic

CoreOS Tectonic was discontinued in late 2020 following Red Hat's acquisition of CoreOS in 2018. Red Hat transitioned many of Tectonic's features into OpenShift, their own enterprise Kubernetes platform. Tectonic users were heavily encouraged to migrate to Red Hat OpenShift Container Platform.

Tectonic provided an enterprise-ready, secure distribution of Kubernetes bundled with automatic update management and a polished web console. While standard Kubernetes required manual configuration, Tectonic automated the lifecycle management of the underlying cluster infrastructure. It heavily promoted the use of CoreOS's own Container Linux operating system.

Yes, automatic updates were one of the flagship features of CoreOS Tectonic, utilizing a tool called the Tectonic Operator. It allowed administrators to seamlessly upgrade their Kubernetes clusters without downtime using rolling updates. This was heavily inspired by the philosophy of ChromeOS's automatic background updates.

Yes, CoreOS Tectonic was fundamentally built upon open-source components, specifically Kubernetes and the etcd key-value store. While the underlying tools were entirely open source, Tectonic itself required a paid enterprise license to access premium support and advanced dashboard features. This model mirrored other enterprise Linux distributions of the era.